A conical flask with a side window to create a terrarium. Contains all you need to build a mini eco-system; coir, sand, activated charcoal and pebbles. Just add your favorite plants. The perfect gift for a green fingered friend! Bring out your inner scientist with this conical flask terrarium. The kit includes all the elements you need to build a mini ecosystem; soil, sand, activated charcoal and pebbles. All that needs adding is your plants! A great addition to any home.